diff --git a/.github/workflows/benchmark.yml b/.github/workflows/benchmark.yml
index 44c13727..4f86e7b6 100644
--- a/.github/workflows/benchmark.yml
+++ b/.github/workflows/benchmark.yml
@@ -12,7 +12,7 @@ jobs:
     - uses: actions/checkout@v2
 
     - name: Set up Python 3.8
-      uses: actions/setup-python@v1
+      uses: actions/setup-python@v2
       with:
         python-version: 3.8
 
@@ -54,7 +54,7 @@ jobs:
     - uses: actions/checkout@v2
 
     - name: Set up Python 3.8
-      uses: actions/setup-python@v1
+      uses: actions/setup-python@v2
       with:
         python-version: 3.8
 
diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 8fa8adce..ffebd497 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -19,7 +19,7 @@ jobs:
     steps:
     - uses: actions/checkout@v2
     - name: Set up Python 3.8
-      uses: actions/setup-python@v1
+      uses: actions/setup-python@v2
       with:
         python-version: 3.8
     - uses: pre-commit/action@v2.0.0
@@ -29,12 +29,12 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        python-version: [3.6, 3.7, 3.8]
+        python-version: [3.6, 3.7, 3.8, 3.9]
 
     steps:
     - uses: actions/checkout@v2
     - name: Set up Python ${{ matrix.python-version }}
-      uses: actions/setup-python@v1
+      uses: actions/setup-python@v2
       with:
         python-version: ${{ matrix.python-version }}
     - name: Install dependencies
@@ -60,7 +60,7 @@ jobs:
     - uses: actions/checkout@v2
 
     - name: Set up Python 3.8
-      uses: actions/setup-python@v1
+      uses: actions/setup-python@v2
       with:
         python-version: 3.8
 
@@ -89,7 +89,7 @@ jobs:
     - name: Checkout source
       uses: actions/checkout@v2
     - name: Set up Python 3.7
-      uses: actions/setup-python@v1
+      uses: actions/setup-python@v2
       with:
         python-version: 3.7
     - name: Build package
diff --git a/setup.py b/setup.py
index 6a63d603..1cadd2b1 100644
--- a/setup.py
+++ b/setup.py
@@ -32,6 +32,7 @@ def get_version():
         "Programming Language :: Python :: 3.6",
         "Programming Language :: Python :: 3.7",
         "Programming Language :: Python :: 3.8",
+        "Programming Language :: Python :: 3.9",
         "Programming Language :: Python :: Implementation :: CPython",
         "Programming Language :: Python :: Implementation :: PyPy",
         "Topic :: Software Development :: Libraries :: Python Modules",